1. GOBIUS. 5 



Anal papilla generally distinct. Gill-opening vertical, of moderate 

 width, the gill-membranes being united to the isthmus ; branchio- 

 stegals five : gills four, pseudobranchiae ; air-bladder none, or, if 

 present, very small. Pyloric appendages none. Vertebra; |^^. 



Found on all the coasts of the temperate and tropical regions, 

 many species entering fresh waters, and some entirely confined to 

 them. 



The attempts to di\nde the numerous species of this genus into 

 smaller groups have failed to establish natural genera. The cha- 

 racters which may be used for that purpose — as the form of the body, 

 the structure and size of the scales, modifications of the dentition, 

 extent of the fins, presence or absence of barbels — either show gradual 

 transitions between the most extreme forms, or such species are 



25. Gobius goldmanni, Bleek. Timor, p. 167. — Timor Kupang. 



26. chlorostigma, Bleek. Verhatid. Batav. Genootsch. xxii., Bhnn. en Gob. 



p. 27. — Coast of Java. 



27. modestus, Bleek. Verhand. Batav. Genootsch. rxii., Blenn. en Gob. 



p. 28. — Java. 



28. ripilepis, Richards. Ichth. Chin. p. 205. — China. 



29. pflauniii, Bleek. Verhand. Batav. Genootsch. xxv., Jnpayi, p. 42. f. 3. 



— Nagasaki. 



30. Ehinogobius similis, Gill, Proc. Acad. Nat. Sc. Pkilad. 1859, p. 145. — Japan. 



Z. Doubtful species apparently allied to G. acutipinnis. 



31. GohiMs mel&nosiigvivA, Bleek. Verhand. Batav. Genootsch. xxii., Bkmi. en 



Goh. p. 32. — Sea of Batavia. 



9j. Doubtful species apparently allied to G. ocellaris. 



32. Gobius nigripinnis, Cuv. if Vol. xii. p. 101. — Bourbon. 

 83. pallidus, Cuv. ^- Val. xii. p. 102. — He dc France. 



34. giianiensis, Ciiv. f Val. xii. p. 103. — Guam. 



35. chiloensis, Guichen. in Gay, Hist. Chile, Zool. ii. p. 293. lam. 6 b. 



f. 1.— Chiloe. 



36. Btamineus, Val. Voy. Bonite, Poiss. p. 179. pi. 5. f 5. — Sandwich 



Islands, 



37. blokzeyli, Bleek. Natuurk. Tydschr. Nederl. Ind. vol. — , Bali, iv. — 



Rivers of Bali. — Very nearly allied to G. grammepomns or G. gijmno- 

 pomus. 



38. caariUeus, lAinoerd, Dix. Rapp. Soc. Hist. Nat. Manr. p. yS. — Mau- 

 ritius. 



Q. Species apparently allied to G. brunneus. 



39. Gobius platycephalus, Richards. Ichth. Chin. pp. 204, 318. — Cliina. 



I. Doubtful species apparently allied to G. phaltena. 



40. Gobius papilio, Cuv. ^ Val. xii. p. 91. — He de France. 



41. Bostrychus sinensis, Lacip. iii. pp. 140, 141. pi. 14. f. 2. — Gobius sinensis, 



Cuv. cf- Val. xii. p. 94. — China. 



K. Doubtful species apparently allied to G. arahic^is. 



42. Gobius mertensii, Cuv. f Val. xii. p. 110. — Hab. ? 



43. pavoninoides, Bleek. Verhand. Batav. Genootsch. xxii., Blenn. en 



Gob. p. 33.— Soa of Madura. 



\. Species apparently allied to G. lanceolatus. 

 44 Gobius smaragdus, Cuv.^ Val. xii. p. 120. — Cuba 45 



